function domainType(domains) {
    //  write code here.
    return domains.map(domain => {
        const domainSplit = domain.split('.')
        const domainType = domainSplit[domainSplit.length-1];
        return domainType === 'org' ? 'organization' : domainType === 'com' ? 'commercial' : domainType === 'net' ? 'network' : 'information';
    })
}



/**
* Test Suite 
*/
describe('domainType()', () => {
    it('returns list of domain types', () => {
        // arrange
        const domains = ["en.wiki.org", "codefights.com", "happy.net", "code.info"];
        
        // act
        const result = domainType(domains);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toEqual(["organization", "commercial", "network", "information"]);
    });
});